Beating the Arc Challenge in Haskell

Re:Beating the Arc Challenge in Haskell by samstokes on Saturday December 19, 2009 @11:12AM (#1004845)

Does Template Haskell affect this discussion at all? (That's not a rhetorical question - I haven't tried any Template Haskell, so I'm genuinely interested to know what it's capable of and how it compares to Lisp macros.)

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Re:Beating the Arc Challenge in Haskell by gwern on Saturday December 19, 2009 @05:16PM (#1005297)

TH does a lot of the same stuff. On a practical level, it isn't as good, though. The implementation leaves a lot to be desired. For example, I once tried to use TH to check XMonad configurations at compile-times (specifically, that their keymaps were sensible), but turns out TH cannot operate on anything defined in the same module!

See http://www.haskell.org/pipermail/xmonad/2008-November/006723... (if you don't like context, scroll down to 'I had to admit failure').

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